rabbit anti-syntaxin-12/13 (Synaptic Systems)
Structured Review
Figure 1 from ∼100 organs of Corti (per biological replicate) and used as starting material in VGluT3-and control IgG-specific immunoisolations. Two technical replicates (indicated as T1 and T2) from two independent immunoisolation procedures (biological replicates R1 and R2) were measured. B and C , approach used for the analysis of the MS data. B , protein enrichment was assessed by comparing VGluT3 immunoisolates with both control IgG immunoisolates and input S2 samples. The –log 10 adjusted p value was plotted against the log 2 iBAQ fold change of VGluT3 over control (IgG or input), with a significant t test FDR threshold of 5% and S 0 = 0. C , to visualize protein enrichment in VGluT3 immunoisolates as compared to both control IgG and input S2, log 2 iBAQ fold change VGluT3/Control IgG vs. log 2 iBAQ fold change VGluT3/Input was plotted; proteins in the upper right quadrant were enriched in VGluT3 immunoisolates – a threshold of log 2 iBAQ fold difference >0.7 was set to consider only proteins with at least 1.5-fold enrichment. D and E , Scatter plots showing differential enrichment of proteins in VGluT3 immunoisolates when compared to both control IgG and inputs at P8 ( D ) and P23 ( E ); displayed are IHC marker proteins VGluT3 and otoferlin, classical SV proteins, SNAREs, SNARE-binding proteins and other proteins. Numbers in parenthesis refer to the total number of significantly enriched proteins in VGluT3 immunoisolates over control IgG and Input (>1.5-fold enrichment). Gene names are displayed. Stx12 gene annotated in UniProt refers to Rabbit Anti Syntaxin 12/13, supplied by Synaptic Systems, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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1) Product Images from "Proteomic Analysis Reveals the Composition of Glutamatergic Organelles of Auditory Inner Hair Cells"
Article Title: Proteomic Analysis Reveals the Composition of Glutamatergic Organelles of Auditory Inner Hair Cells
Journal: Molecular & Cellular Proteomics : MCP
doi: 10.1016/j.mcpro.2023.100704
Figure 1 from ∼100 organs of Corti (per biological replicate) and used as starting material in VGluT3-and control IgG-specific immunoisolations. Two technical replicates (indicated as T1 and T2) from two independent immunoisolation procedures (biological replicates R1 and R2) were measured. B and C , approach used for the analysis of the MS data. B , protein enrichment was assessed by comparing VGluT3 immunoisolates with both control IgG immunoisolates and input S2 samples. The –log 10 adjusted p value was plotted against the log 2 iBAQ fold change of VGluT3 over control (IgG or input), with a significant t test FDR threshold of 5% and S 0 = 0. C , to visualize protein enrichment in VGluT3 immunoisolates as compared to both control IgG and input S2, log 2 iBAQ fold change VGluT3/Control IgG vs. log 2 iBAQ fold change VGluT3/Input was plotted; proteins in the upper right quadrant were enriched in VGluT3 immunoisolates – a threshold of log 2 iBAQ fold difference >0.7 was set to consider only proteins with at least 1.5-fold enrichment. D and E , Scatter plots showing differential enrichment of proteins in VGluT3 immunoisolates when compared to both control IgG and inputs at P8 ( D ) and P23 ( E ); displayed are IHC marker proteins VGluT3 and otoferlin, classical SV proteins, SNAREs, SNARE-binding proteins and other proteins. Numbers in parenthesis refer to the total number of significantly enriched proteins in VGluT3 immunoisolates over control IgG and Input (>1.5-fold enrichment). Gene names are displayed. Stx12 gene annotated in UniProt refers to syntaxin-12/13 protein (syntaxin-12 and syntaxin-13 are the same protein; syntaxin-13 is the accepted term by the scientific community, but is still annotated in most databases as syntaxin-12). See also Figure Legend Snippet: MS-based comparative enrichment analysis of VGluT3 immunoisolates’ proteome reveals age-dependent changes in the expression of synaptic and trafficking proteins . A , schematic representation of the immunoisolation approach to isolate IHC VGluT3-positive vesicular structures from immature (P8) and mature (P23) organs of Corti. S2 fraction was prepared as described in
Techniques Used: Expressing, Protein Enrichment, Marker, Binding Assay, Mass Spectrometry
Figure 4 , D and E ( upper right quadrant and >1.5-fold enrichment). Stx12 gene annotated in UniProt refers to syntaxin-12/13 protein (syntaxin-12 and syntaxin-13 are the same protein; syntaxin-13 is the accepted term by the scientific community, but is still annotated in most databases as syntaxin-12). Source data are available for this figure ( Figure Legend Snippet: Comparative analysis of enriched proteins in P8 and P23 VGluT3 immunoisolates revealed a small overlap in protein identifications between ages and a different relative enrichment for shared proteins . A , Venn diagram showing the overlap between the significantly enriched proteins (>1.5-fold enrichment) at P8 and P23. B and C , ranking of significantly enriched proteins according to their relative enrichment in VGluT3 over Control IgG immunoisolates and input S2, before ( B ) and after ( C ) hearing onset. Relative Enrichment corresponds to the average of log 2 iBAQ (VGluT3/Input) and log 2 iBAQ (VGluT3/Control IgG). Displayed are only enriched proteins shown also in
Techniques Used:
supplemental Table S4 . B–F , Scatter plots showing positively enriched proteins in VGluT3 immunoisolates at P23 when compared to both control IgG and input; log 2 iBAQ fold change VGluT3/Control IgG vs. log 2 iBAQ fold change VGluT3/Input was plotted. Displayed are proteins involved in trafficking events in different trafficking organelles (SV, endolysosomal, Golgi, and ER proteins) including SNAREs and resident proteins. Several Rab GTPase proteins, mostly of endolysosomal nature, were also enriched ( F ). Annotations were done manually and based on information available in several databases; proteins were grouped according to cellular compartment and biological function. For detailed annotation see Figure Legend Snippet: Functional annotation of mature VGluT3-associated IHC proteome reveals a mixed SV-endosomal signature . A , sunburst diagram with functional annotation of the enriched proteins in VGluT3 immunoisolates at P23. Proteins were grouped for display according to their cellular component and their involvement in trafficking events. Annotations were done manually and based on information available in several databases; proteins were grouped according to cellular component and biological function. For detailed annotations see
Techniques Used: Functional Assay, Membrane
Figure Legend Snippet: Immunolocalization analysis of SNARE, SV, and kinase proteins in the adult organ of Corti . A–D , VAMP-7 ( A ), syntaxin-12/13 ( B ), syntaxin-8 ( C ), and syntaxin-7 ( D ), all highly enriched in our MS experiments, are expressed in IHCs. E–H , some classical neuronal SV proteins SCAMP1 ( E ), V-ATPase ( F ), and SV2B ( G ), and the kinase PKCα ( H ), all enriched in our MS experiments, are expressed in IHCs. Note that all proteins localize to the basolateral region of the IHCs, although in some cases the protein is also expressed in supporting cells and/or in afferent (postsynaptic) and efferent fibers of SGNs. Images correspond to high magnification views of representative P15–25 IHCs immunolabeled with antibodies against the candidate proteins ( red ), the ribbon marker CtBP2/RIBEYE ( green ), and the IHC marker otoferlin ( blue ). The upper panels show overviews of representative IHCs, displaying maximum intensity projections of 5 to 10 confocal optical sections through the longitudinal axis of the IHCs (scale bars: 5 μm). The bottom panels show a zoom into the synaptic area, displaying single confocal optical sections through the longitudinal axis of a single IHCs at the basal region (scale bars: 2 μm). IHC, inner hair cell; MS, mass spectrometry; SGN, spiral ganglion neuron.
Techniques Used: Immunolabeling, Marker, Mass Spectrometry
